KR20090065643A - Cell culture container and cell culture system - Google Patents

Abstract

The present invention is a culture vessel in a cell culture system used for proliferation and differentiation of tissues or cells isolated from animals or humans. , a culture container), and a novel cell culture system for inducing cell differentiation using the present invention.

The culture vessel of the present invention has a form of a circular culture dish type or quadrangle, and has an outlet (outflow port) or inlet port at a lower end of the circular culture dish type culture vessel. It has an inflow port and owns a lid, and the rectangular culture vessel has a dividing wall that separates the inside of the container into two, and a part of the separation wall passes the culture fluid on both sides of the separation wall. It possesses a membrane which possesses a certain size of pores and possesses a lid, and a breathable membrane that does not pass bacteria or the like through the lid or sidewalls but can pass air and gas. The company owns a Germ barrier filter membrane.

Cell culture containers are divided into round plates or squares, and according to the installation shape, two storied cell culture containers when two are stacked up and down, It consists of an upper chamber and a lower chamber, and a single storied cell culture container when the two are installed without overlapping The left chamber and the right chamber were configured.

The new cell culture system of the present invention is a cell culture vessel of the present invention, a peristaltic pump, a filter, a three way valve and The cell culture system, which includes a connecting tube, passes through the loss and basement (or the left and right chambers) by a peristaltic pump so that the cell culture fluid continuously circulates only in a certain direction.

This cell culture system separates humoral factor sources necessary for proliferation or differentiation of various cells including stem cells and the like, and separates the microenvironment of humoral factor sources. cell culture system that allows the selective harvesting of only the cells that are needed by proliferating or differentiating stem cells using microenvironment and epigenetic elements. 발명 系, cell culture system).

Description

Cell culture container and cell culture system {Cell culture container and cell culture system.}

The technical field of the present invention relates to a container for cell culture in a culture system used for cell proliferation and cell differentiation in the field of biotechnology,

The invention relates to a new cell culture system capable of inducing cell differentiation using the cell culture vessel of the present invention, which is a microenvironment or extracellular gene. By using epigenetic elements, the invention is designed to easily and inexpensively achieve proliferation and differentiation of cells (induced or guided or directed differentiation).

Cell culture has long been known as a technique used only for research purposes, but now cell therapy using cultured cells for the treatment of disease has gradually expanded. Accordingly, the value of cell culture is increasing in the medical field.

Artificially cultured cells show various characteristics in the process of growth-proliferation-differentiation. Most cells proliferate and survive by attaching to the bottom of the cell culture vessel, and the cells of which the limited bottom of the container is fully proliferated. Once occupied by, it stops further proliferation-growth-differentiation (contact inhibition). However, some cells differentiate by forming cell mass, forming multiple layers and continuously proliferating on other cells. On the other hand, some cells possess the characteristics of growth-proliferation-differentiation while maintaining suspension in the cell culture solution. The present invention relates to a culture vessel used for attaching, growing, proliferating and differentiating cells, and to a new cell culture system using a new culture vessel of the present invention.

Various devices are involved in the culture system currently used, but one of the most important factors is a cell culture container for growing and growing the cells to be cultured. for cell culture). The type of cell culture vessels currently used around the world is based on the characteristics of the cultured cells and the purpose of the culture. Culture dishes, culture plasks, roller bottles, culture slides or chambers slides and a modified Boyden chamber, etc., and only a few of these vessels are modified. Among these, culture plates and culture flasks or roller bottles are mainly used for the purpose of cell proliferation, and may also be used for research related to the differentiation of cells in part. Culture slides are used primarily for the study of function in most forms or parts, not the purpose of cell proliferation, because of the very small size of the slides.

In the modified Boyden chamber, unlike a conventional culture system, a culture system is divided into two separate chambers, an upper chamber and a lower chamber. It consists of a chamber, and the bottom or lower surface of the upper chamber is composed of membranes with fine pores of various sizes. The medium in the lower chamber and the cells at the bottom of the chamber can share or contact the medium. In addition, the upper surface of the upper chamber of the modified void chamber is mainly composed of a variety of biological materials (collagens, fibronectin, laminin, poly-D-lysine, Matrigel®, etc.) can be applied or applied to the cells to study cell motility, adhesion, metastasis, or invasion. It is available.

To use a modified Boyden chamber, fill the lower chamber with a certain amount of culture, and then fill the upper chamber with the same culture as the culture filled in the chamber or different cultures depending on the purpose of the study. By seeding the cells to be studied in the loss, the seeded cells grow by attaching to the upper surface of the membrane at the bottom of the loss. Depending on the purpose of the study, a chemo-attractant may be added to the lower chamber to observe changes in the cells in the upper chamber over time. The bottom of the upper chamber of the modified void chamber is made of membranes that possess micropores of various sizes, the size of which passes through most cells. It is large enough to cause some or most of the cells to migrate from the upper surface of the membrane to the lower surface through the micropores, or to the lower chamber over time. Go to. In most studies, the number and shape of these migrated cells can be observed to accomplish the purpose of the study. The disadvantage of this modified Boyden chamber is that it is not possible to re-collect cells seeded in the upper chamber for research and use them for other purposes in research and clinical patients. will be.

Differentiation of cultured cells is a field that has emerged greatly in recent years with the study of stem cells. Stem cells are largely divided into two types, embryonic stem cells and adult stem cells. The most significant practical problem to be addressed in current stem cell research is to obtain a large amount of undifferentiated stem cells and to differentiate them into desired tissues as long as they are satisfied to obtain a satisfactory therapeutic effect. Although it depends on the stem cell source, the number of stem cells that can be harvested at one time is very small.

Embryonic stem cells are culture-proliferation-growth by harvesting immature stem cells from the inner cell mass of the fertilized embryo. In contrast, adult stem cells are stem cells obtained from various organs that have already grown, including bone marrow stem cells and adipose tissue, including umbilical cord blood stem cells. Stem cells continue to be discovered from adipose tissue derived stem cells and various other tissue sources.

The multipotent differentiation potential, which is able to differentiate into several types of cells or tissues, which is characteristic of stem cells, is used in the treatment of many patients with diseases that are considered incurable or intractable in the present medical knowledge. It is considered a key treatment for future medicine to help. Differentiation of stem cells in culture has been reported to occur in some cell cultures, where some of them have no treatment. Differentiation of stem cells may help the patient if they differentiate into cells or tissues suitable for the treatment of the patient, but in the case of differentiation of the stem cells into cells or tissues that are not suitable for the purpose of treatment, the result may be undesirable. It can also harm patients. For example, the problem that cannot be solved in the field of embryonic stem cells is teratoma, which is absolutely not useful for treating patients, and since embryonic stem cells are highly likely to degenerate into cancer, I can't.

At present, the medical community is actively researching differentiation (directed or guided differentiation) of stem cells into cells or tissues which are desired to be differentiated. At present, the most widely used differentiation-inducing method is to extract stem cells from various tissues and culture them, and add different growth factors of various growth factors known to the culture medium to add differentiation results. Genetic manipulations on chromosomes of stem cells are used to differentiate them into desired cells or to produce more substances for the treatment of patients. .

In other words, the approach to the method of adding growth factors is that no scholar now knows exactly what growth factors are necessary for the stem cells to differentiate into the specific cells or tissues we want. Therefore, many scholars, based on experiences and academic reports from other experiments in the past, add growth factors, which are thought to be helpful for differentiation into tissues to be induced, to observe the results. To date, despite many of these studies, only a few have been tested while satisfying the reproducibility of experimental results differentiated into specific cells or tissues, and most of them have lost reproducibility.

That is, a problem in cell therapy using adult stem cells in the current medical situation is that it is difficult to obtain an appropriate number of undifferentiated stem cells necessary for cell therapy of disease, Adult stem cells from tissue sources are very difficult to direct or guide differentiation into desired cells or tissues, making cell therapy difficult. At present, maintaining the expansion of stem cells in undifferentiated state has made considerable progress with many studies. However, since low cost and easy differentiation-inducing methods have not been developed to date, cell therapy using stem cells for difficult to cure or noncurable diseases The development of differentiation mechanisms and cell culture systems that are capable of differentiating clinically low cost and easily desired specific cells or tissues is very important.

In other words, in connection with cell therapy, stem cells can be expanded, and differentiation potentials possessed by stem cells can be induced by low cost and easy methods. The most urgent task is to develop a method of achieving induced, guided or direct differentiation, and subsequent equipment.

Recently, the importance of niche in relation to stem cells has emerged, and the value of microenvironment or epigenetic factors related to stem cell differentiation has increased. It is important. In other words, it is a theory that a certain organ is secreting a humoral substance that we do not yet discover, which is essential for the composition of the cells or tissues that constitute the organ. We believe that this material plays a very important role in cell differentiation, but we don't know it yet and many scholars are trying to determine what growth factor it is. To this end, we are using various research methods such as high cost proteomics, but only very few results have been obtained.

The importance of microenvironment and extraneous factors in cell differentiation has been emphasized for a long time. Recently, many scholars have recognized the importance of microenvironment and extraneous elements and induced cell differentiation. In this experiment, a modified Boyden chamber (Transwell®) or a coculture system was used to induce differentiation at a low cost. Desirable results have been obtained.

In the case of using these modified voiddenvers, the most fatal defects for use in cell therapy clinically with these cells are the microenvironment of specific cells or tissues located in the lower chamber. The stem cells of the upper chamber, which began to differentiate by being influenced by microenvironment and extraneous factors, move to the lower chamber during cell culture, and stem from the loss. Early differentiated cells that started to differentiate from cells could not be obtained purely. That is, even though the upper chamber and the lower chamber are not strictly separated, even if the stem cells of the loss eventually differentiate, they are mixed with the cells or tissues of the chamber, thus necessitating the purely differentiation necessary for cell therapy. You can't get these cells.

And, experiments using a coculture system, by culturing the existing already differentiated cells or tissues and undifferentiated cells together, from the existing differentiated cells present in the adjacent position of the cells to be differentiated The results confirm that the undifferentiated cells to be tested by the unknown humoral substance induce differentiation, and the results are very good. However, it is practically impossible to selectively extract these newly differentiated cells and perform any cell therapy.

In other words, no new cell culture system including a new culture container that can compensate for these drawbacks has been invented. The invention of is urgently required, and the present invention was invented to satisfy this.

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Currently, various cells such as stem cells in the medical world are being used for clinical treatment by proliferation or amplification, but the technical problem of cell therapy is effective treatment of patients. Differentiation induction (induced or guided or directed differentiation) of various cells, including stem cells and the like, has not yet succeeded in ensuring reproducibility. At the same time, the enormous amount of money spent on this research is a challenge. Induce differentiation using unidentified humoral substance derived from microenvironment and epigenetic factor. Modified Boyden chambers and coculture systems have been used, with reports that the method is simple and successful. In the differentiation research process, the modified Boyden chamber and coculture system are used for differentiation of a small number of stem cells for research, but they are used for cell differentiation for clinical patient treatment. In case of using existing modified Boyden chamber and coculture system, differentiation induction early differentiation cells (differentiation induction) that started differentiation In addition to the small number of cells, even if there are cells differentiated, induced or guided or directed differentiation, it is clinically impossible to obtain purely differentiated cells from undifferentiated cells. The most deadly technical challenge in which modified Voiden chambers and coculture systems cannot be used in current cell therapy The.

In other words, research and invention of a new culture container and a new cell culture system including the culture container, which can be easily used for cell therapy while supplementing these shortcomings, are technical. It is a task.

The technical problem to be solved by the present invention, while solving the technical problems owned by the modified voidden chamber and co-culture system used to induce cell differentiation (differentiation, induced or guided or directed differentiation) It is to reduce the cost required to achieve.

That is, the present invention can be easily used by using a microenvironment of a specific target cell to proliferate and differentiate various cells including stem cells into cells necessary for cell therapy for cell therapy. And developing a container for cell culture to obtain differentiated cells induced (guided or directed) into specific cells at low cost, and using the culture vessel It is what constitutes a cell culture system.

The present invention is divided into two types. First, an unidentified humoral substance secreted by a microenvironment or an epigenetic factor or the like is a humoral substance. To effectively induce differentiation (induced or guided or directed differentiation) by using a substance, a new type of container for cell culture is first invented. It is to form a new cell culture system (細胞 培養 系, cell culture system), including the cell culture vessel of the present invention.

First, the new cell culture vessel of the present invention is in the form of a circle or square. Circular cell culture vessels are two types, one type is a two storied cell culture container invented to overlap two circular cell culture containers, and the other is a monolayer. It is a single storied cell culture container.

The bilayer cell culture vessel is composed of two chambers, the lower cell chamber and the upper cell culture chamber. Can be completely closed by tightly connecting with a screw groove,

Loss of culture vessel was invented to close tightly closed by using the lid and screw-shaped groove,

In each chamber, two outlets (outflow port) and one inlet port (inlet port) are provided for each chamber. It is located at a certain height above which the cells proliferate at the bottom of each upper and lower base and occupy and confluence the bottom of the container completely.

Germ barrier filter membrane is provided on the side of the lid or container so that germs can't pass but freely enter gas including air and carbon dioxide.

Another type of circular cell culture container is a single layer cell culture container invented for use by separating two cell culture containers without overlapping one by one and connecting two containers with a connecting tube.形 細胞 培養 容器, single storied cell culture container)

The cell culture vessel was invented to be tightly closed and secured using a lid and a screw-shaped groove.

A total of two outlet ports (outflow port) or inflow port (배양 入口, inflow port) through which the culture fluid can enter or enter the lower part of the culture vessel are located above the bottom of each container.

The lid has a germ barrier filter membrane that does not pass germs but allows free access of gases, including air and carbon dioxide.

Quadrangle type cell culture containers are rectangular or square, separated by partitions.

This separating wall is a cell culture medium in a cell culture container containing humoral substance dissolved in the culture medium and the culture medium without passing cells or cell debris above the bottom of the cell culture container. Only cell culture media possess a pore membrane that can pass freely.

The lid has a germ barrier filter membrane that does not pass through the germs but allows free passage of gases including air and carbon dioxide.

The other one of the present invention is the new cell culture vessel of the present invention described above, a peristaltic pump, a filter, a three way valve and a connecting pipe. It is a new cell culture system including a connecting tube. The cell culture system is a cell culture vessel capable of culturing various cells such as stem cells that require differentiation, and organs, tissues, or tissues being cultured in a cell culture vessel separated therefrom. It consists mainly of a cell culture system that connects cell culture vessels for culturing humoral factor sources, such as cells, and the microenvironment of humoral factor sources. Easily and selectively harvest differentiated cells, while guided differentiation of cells such as stem cells in other cell culture vessels using microenvironment or epigenetic factor The present invention relates to a new cell culture system.

The composition of this new cell culture system,

In the case of a cell culture system using a two storied cell culture container invented to overlap two cell culture containers, Fill an appropriate amount of culture in either the lower chamber or the upper chamber, and then use tissue or a source of humoral factor as a source of humoral factor. Incubate with cells, etc.

After connecting a connecting tube to the outflow port of the cell culture vessel, a filter and a 3-way valve are installed in the middle. After passing through the peristatic pump, the connecting tube moves the culture medium to the inflow port of the loss or basement where the stem cells to be differentiated, etc. are growing.

The stem cells to be differentiated are passed through the cells of the growing or losing basement and connected to the connecting tube through the outflow port of the losing or basement. Installed in the middle, this connector passes through the peristaltic pump again, and is a source of humoral factor, organ and tissue. Alternatively, the cell culture solution is transferred to the inflow port of the basement or the chamber in which the cells and the like are cultured.

In the case of a cell culture system using a single storied cell culture container in which a culture vessel is separated, a humoral component is contained in one (left or right) culture vessel. It is cultured by adding organs, organs, tissues, or cells as a source and growing in the other (right or left chamber) culture vessel. While culturing the cells containing the stem cells to be differentiated, such as a cell culture system using a two-layer culture vessel, a filter and a three-way valve are installed in the middle. A connecting tube connecting them to the cell culture fluid is circulated in one direction while passing through the peristaltic pump.

The effect of the present invention is that the characteristics of the existing modified Boyden chamber or coculture showing high induction of differentiation (induced or guided or directed differentiation) are intact. By preserving, it is possible to easily collect only pure differentiated cells, which solves the disadvantages of modified Voiddenber and co-culture, so that a large amount of pure differentiated cells suitable for future cell therapy can be obtained. It's in the ship.

 Current limitations of biological knowledge related to cell differentiation include the growth factors necessary for differentiation from original cells or tissues to other cells or tissues through existing cell cultures. It is a situation that many experiments are repeated for differentiation induction (induced or guided or directed differentiation) in a situation where the growth factor is not known, and it is very important to secure the reproducibility of the experiment while consuming much expense and time. Low or rarely,

Recently, many reports on the success of microenvironment and epigenetic factors, which have been released continuously, have been used to differentiate these microenvironments and epigenetic factors. It supports the theory that the cells of the brain are important for differentiation into other cells. The instrument used to demonstrate this is a modified Boyden chamber or coculture.

However, due to the nature of this culture system, the modified Vödenchamber can be used for small cell differentiation experiments, making it difficult to secure a large number of cells to treat patients. In the case of using, the cells cultured in the upper chamber and the lower chamber have to mix with each other, and the collection of only pure differentiated cells necessary for patient treatment is different. This is not possible until special equipment is used. Also, in the case of coculture, when cells to be differentiated are differentiated, it is impossible to separate and extract these cells from existing differentiated cells in clinical practice except for experimental studies.

At the same time, by using the present invention, since the experiment can be effectively terminated more easily than the various research methods used for differentiation (induced or guided or directed differentiation), it is possible to save a lot of money and time.

The present invention relates to cell therapy during cell therapy and gene therapy, which is believed to be the hope of future treatment of current incurable or incurable diseases. Cell culture vessel and the new cell culture system (새로운 系, Cell culture system) for proliferation and differentiation through cell culture using the same.

As already mentioned in the summary, this invention consists of two things, one is the invention of a new culture cell container, and the other is the new cell culture container. It is an invention for the construction of a new cell culture system (細胞) 系, cell culture system).

The cell culture vessel of the onset is a microenvironment factor or a microenvironment factor, which is recognized as an important factor for proliferation and differentiation in relation to general cells and stem cells which have been the subject of recent discussion. A cell culture vessel capable of separating the source of humoral factor secreted by the epigenetic factor and the cells cultured for differentiation. One for the culture container,

Another invention is to propagate normal cells or undifferentiated stem cells using the cell culture vessel of the present invention, and if necessary, the person handling these cells is induced, differentiated, induced or guided or directed It is a new cell culture system invented for differentiation, individualized treatment or customized treatment.

The new cell culture system of the present invention is a cell culture vessel of the present invention, a conventional peristaltic pump, a filter, three directions, 3 way) includes a valve and connecting tube,

A microenvironment or extragenic element, a source of humoral factor, reported to have a significant effect on the proliferation and differentiation of cells in culture. Induced or guided or directed differentiation or proliferation of cultured cells by inducing the proliferation or differentiation of cells studied by the humoral component while separating the epigenetic factor from the cells to be differentiated. The present invention relates to a new cell culture system that allows to proceed as desired.

1 is a representative view of a container for cell culture, a cross-sectional view (AA) of a two-layer cell culture container that overlaps two dish cell culture containers (AA) A cross-sectional view (BB) of a single-layer cell culture container for one (1) cell culture container when and each dish cell culture container are placed in parallel. To explain this in detail,

The two-layer cell culture vessel (AA) is composed of an upper chamber and a lower chamber, which is a single layer cell culture vessel. cell culture), but the connection between the loss and the basement (B) is enlarged in FIG. 3, and when the connection between the loss and the basement is seen, instead of removing the lid of the lower chamber, The inside of the top of the container is screwed into the groove (F in Figure 3), and the bottom of the upper chamber has a screw-shaped projection (F in the figure 3) In this case, the loss and the base can be completely closed, so that nothing can pass through this connection during the complete close of the loss and the base, so that no entry of material into the lower chamber is possible through this connection. I'm letting you. In addition, an outlet (outflow port) or an inflow port (流 入口, inflow port) for inserting a connection pipe is installed at a position slightly raised from the bottom of the loss and the basement, respectively. It is depicted in 4. This outlet or inlet is at the top of any minimum height at which the cells do not pass after the cells have adhered and proliferated at the bottom of each incubator (lost or basement) to completely occupy the bottom of the vessel. Located. This means that most adherent cells adhere to the bottom of the culture vessel and proliferate, and when they reach the culture vessel wall, they stop further proliferation (contact inhibition). For example, an outlet (outflow port) or inflow port should be located at an upper position where cells cannot fall, so that the cells to be studied can be prevented from flowing out through the outlet or inlet port. 3 is an enlarged view (D) of an outlet (or inlet) of an upper chamber, and FIG. 4 is an enlarged view (C) of a lower chamber. The outlet (or inlet) portion projecting outward forms a tooth-like shape so that it does not fall easily when the connector is inserted over the outlet (or inlet). You can increase or decrease according to your preference. At the same time, the caps A and K of the bilayer or monolayer cell culture vessels, as shown in Fig. 2 (A), have a screw-shaped protrusion on the upper part of the cell culture vessel and a screw of the cap The groove is shaped so as to fit snugly, and when the cap is rotated, the cell culture vessel is completely intimately closed if there is no other part communicating with the outside without the ventilation membrane. However, oxygen supply is a very important requirement for cell culture because the cell is a living organism, so the center portion (E) of the lid or the side (E) of the upper chamber and the lower chamber as enlarged in FIG. The germ barrier filter membrane contains micropores that cannot pass bacteria but can freely pass air or other gases. It is designed to be. In the bilayer cell culture vessel (AA), when the air permeable membrane is possessed by the lid X, the side air permeable membrane may not be necessary. In the AA of FIG. 1, the hatched or disconnected portion between the loss and the base was enlarged to allow the enlargement or reduction of the size of the container for cell culture according to the required purpose. .

The monolayer cell culture vessel (BB) is the same as that in which only the upper chamber of the bilayer cell culture vessel is separated. The lid (X) and the container for cell culture (細胞 培養 容器), as shown in Figure 2, is designed so that the screw-shaped protrusion on the top of the culture vessel and the screw-shaped groove in the lid fit snugly, turn the lid It can be completely in close contact with the culture vessel, and the upper part of the lid, as shown in Figure 6 (E) and Figure 8, micropores (micropore) that can not pass through the bacteria, but can freely pass through the air or other gas Although a permeable membrane is included, the permeable membrane may be installed on the side of the cell culture vessel, not a lid, for manufacturing reasons. At the same time, the outlet (or inlet) as shown in Figure 4 is installed in a portion slightly up from the bottom of the cell culture vessel, and the jagged projections as shown in Figure 4 (CA), the connector is not pulled out when the connector is inserted The number of teeth can be increased or decreased according to the manufacturer's preference. At the same time, the diagonal lines on the bottom and the lid made it possible to enlarge or reduce the size of the culture vessel as needed.

2 is an enlarged view of a screw-shaped protrusion of a container and a screw-shaped groove of a lid corresponding to both a bilayer cell culture vessel (A) or a monolayer cell culture vessel (K), Closing the cell culture vessel and the lid allows a complete close closure, preventing other substances from passing through this area.

3 is an enlarged view (F) of the connection between the upper chamber and the lower chamber in a two-layer cell culture vessel (AA), with a screw-shaped shape on the upper inner surface of the upper chamber. The grooves are designed, and the threaded protrusions at the bottom of the chamber fit tightly into the chamber and the chamber can be a completely closed set of two-layer culture vessels through which no material can pass. D is an enlarged view of the outlet (or the inlet), as shown in the figure as a jagged protrusion designed to prevent the plug out easily.

Figure 4 shows the outlet (or inlet) of the bottom of the cellar and monolayer cell culture vessel (BB) of the two-layer cell culture vessel (AA) of Figure 1 As an enlarged drawing of the part C included, as shown in the enlarged drawing of CA, a jagged protrusion was provided so that the connection pipe could be easily inserted into the outlet (or inlet).

5 is a connection pipe to a peristaltic pump used in a new cell culture system using the bilayer cell culture vessel or the monolayer cell culture vessel. An enlarged view with a tube). The wing (ee) on the rotating shaft of this peristaltic pump can be different depending on the person making it into two, three or four. The wings (ee) installed on the rotating shaft of each peristaltic pump must have the same size of each wing, and the connecting tube A can be pressed by possessing elasticity while the wing rotates in a certain direction. When (Tube A, aa-bb) and the connecting tube B (Tube B, cc-dd) are simultaneously pressed, the culture medium in the connecting tube is moved in the direction of the arrow to circulate the cell culture solution. Depending on the rotational direction of the peristaltic pump, the culture medium inside the connection pipe A and the connection pipe B will be reversed in the direction of circulation. And irrespective of the thickness of connector B, the amount of circulating culture will be the same.

FIG. 6 shows an air permeable membrane (Germ) containing micropores that do not pass through bacteria installed on the side or lid of the culture vessel in FIG. 1 but are free to pass air or other gases. Barrier Filter Membrane).

7 is a side view of the bilayer cell culture vessel viewed from a direction in which a Germ barrier filter membrane is installed. kk, gg, oo and mm are the outflow port or the inflow port.

FIG. 8 includes micropores that do not pass bacteria but freely pass air or other gases through the lid of the dish-type bilayer cell culture vessel or the monolayer cell culture vessel. The drawing shows a Germ barrier filter membrane.

FIG. 9 is a top view of a quadrangle type cell culture container, and has a partition (qq-qq) in the middle of a square (square or rectangular) cell culture container. The partition's position within the rectangular cell culture vessel can be arbitrarily changed by the manufacturer according to the research purpose. In the middle of the partition, mediums such as cells or cell debris cannot pass, but the culture fluid containing humoral factors contains micropores of a size that can freely pass through each other. A membrane was installed. The membrane is located at the top of the cell culture vessels, where they proliferate and occupy the bottom of the vessel completely (occupy, confluence), and then stop the cell proliferation. At the same time, the germ barrier filter membrane contains micropores that do not allow bacteria or other gases to pass through the lid of the rectangular cell culture vessel. In this case, even if the rectangular culture vessel is sealed, gas containing oxygen can flow through the sterilized membrane, so that the cells in the culture vessel do not fall into oxygen deficiency. If the lid and container of the rectangular culture vessel are completely closed, the media change of the cell culture is difficult and can be used only for short-term culture.

Figure 10 is a schematic diagram of a new cell culture system (細胞 培養 系, cell culture system) invented by combining the cell culture vessel of the present invention and a number of devices used in the past, peristal to the two-layer cell culture system of the present invention Pertical pumps, filters (filters with membranes that filter cells or cell debris but pass cell culture fluids containing humoral elements), three-way valves and connectors The microenvironment or epigenetic, which is the source of humoral elements, is separated from the cells in culture and the humoral factor source, including Urea can be used to induce proliferation or differentiation, allowing the investigator to selectively guide or induce differentiation or proliferation of cultured cells as desired by the researcher. The new cell culture system is a system diagram showing a (細胞 培養 系, cell culture system).

11 is a schematic diagram of a cell culture system for connecting a monolayer cell culture vessel, in which cell culture vessels G and H are separated from each other without being connected up and down. As the position, the culture solution exiting the outflow port (Gaa) of the cell culture vessel G is passed through a three-way valve (3 way valve, Gbb) through the tube D (Tube D), After passing through the peristaltic pump, it passes through a filter (Gcc) and enters the inflow port (Hdd) of another cell culture vessel H. The culture medium contains humoral factors through tissues or cells seeded in the cell culture vessel H, and the outflow port (Haa) of the cell culture vessel H and the connection tube C ( After passing through the peristaltic pump through Tube C), through the three-way valve (3 way valve, Hbb) again through the filter (濾 過 膜, filter, Hcc) and the inlet of the cell culture G (流 入口) , inflow port, Gdd).

Details for the specific implementation with the cell culture vessel of the present invention having the structure as described above,

This invention is divided into two, one is a cell culture vessel, the other is a new cell culture system (細胞 培養 系, cell culture system) using the cell culture vessel of the present invention.

First, the cell culture vessel of the present invention has a circular culture dish type or a square or regular square or rectangular type. Circular culture dish type has an outlet (outflow port) or inflow port at the lower end of the cell culture vessel, characterized in that it owns a lid, circular cell culture vessel Are again divided into two types, one type is a two-stage cell culture container (two storied cell culture container) invented for use by overlapping two circular cell culture containers. It is a single storied cell culture container invented for use by connecting two containers side by side by separating each other without overlapping two cell culture containers. Rectangular culture vessels have a dividing wall that separates the inside of the container into two without inlets or outlets, and a portion of the dividing wall has a certain size of pores so that the culture fluids can pass through the walls. owns a membrane of pore.

The new cell culture system of the present invention is a cell culture vessel of the present invention, a peristaltic pump, a filter, a 3-way valve. and a microenvironment, which is a source of humoral urea, by separating a cell and a humoral factor source that require differentiation such as stem cells, Proliferation and induction or guided or directed differentiation of various cells such as stem cells using microenvironment or epigenetic elements, resulting in desired proliferation or differentiation The present invention relates to a cell culture system capable of selectively collecting bays.

Example, according to the method for installing the culture dish cell culture vessel, the case of two-storied cell culture container (two storied cell culture container) in which two are stacked up and down, the loss (上 室It consists of an upper chamber and a lower chamber, and in the case of a single storied cell culture container in which two are separated and installed in parallel, the left chamber (左) Left, left chamber and right chamber (右 室, right chamber),

Through the outflow port or inflow port of the cell culture vessel or the left or right chamber, the culture medium of the cell chamber or the left and right chamber is continuously discharged. The cell culture fluid can be continuously circulated through a connecting tube connected to the outflow port, the outflow port, or the inflow port, and the circulation of the cell culture fluid is a peristatic pump. It is forcibly carried out by), and a filter and a three way valve are installed in the middle of the filter.

An embodiment using a cell culture container of the present invention and a new cell culture system using the present invention, the same host as an adipose derived cell Cell differentiation experiments conducted on adult dogs grown on experiments using bladder muscles of

Adult dogs weighing 12 kg were pretreated with atropin, and then anesthetized with phenobarbital and xylazine, and the dog's back was fixed to the operating table (supine position). Next, shave the abdomen, disinfect it with potadidine solution, and then open it with a surgical knife, sterilize about 20 grams of abdominal fat and sterilize it with 4 degrees of antibiotics (penicillin, streptomycin). , Amphotericin b) was added to Dulbecco's minimum essential medium (DMEM), and the bladder was separated and collected sterilely and stored in the same medium (DMEM) at a separate image 4 degree temperature.

Abdominal fat, which had been sterilized in medium at 4 ° C, was sterilized again in fresh medium, and then chopped to treat fragmented adipose tissue at 37 ° C in 0.2% collagenase solution. do. It inhibits the enzyme activity using DMEM medium. This is filtered through a mesh screen and centrifuged to remove mature fat cells and dead cells and collect stromal cells. The mixed red blood cells were removed by treatment with buffer solution (0.154 mol / L, NH4Cl, 10 mmol / l KHCO3 and 0.1 mmol / l EDTA) for 5 minutes, and the collected stromal cells were suspended in DMEM solution and centrifuged again. After the cells are collected and filtered through the mesh, in the case of a bilayer cell culture vessel, an upper chamber, a lower chamber, or a monolayer cell culture vessel is used. In the case of 容器, it is sown in the minimum essential medium (DMEM, 10% FBS, 1% Antibiotic) of one chamber of left chamber and right chamber. seeding.

Apart from adipocyte separation, at the same time, the bladder that was stored in cold minimum essential medium (cold-DMEM) was medianly cut and further washed inside the bladder with antibiotic-added DMEM, then the bladder endothelium was removed and the bladder muscle was sliced. (細 切, chopped), the mixture was shaken with collagenase at 37 degrees for 30 minutes, washed with DMEM, centrifuged, and the precipitate was made again with a small amount of DMEM. Sowing is performed in the lower chamber or the upper chamber, otherwise the right chamber or the left chamber, which is different from the chamber in which the fat cells are sown.

In this state, the body fluid in the lower chamber of the cell culture system using a two storied cell culture container as shown in FIG. If seeded cells or tissues secreting a humoral factor, the culture fluid through the outflow port (gg) of the loss of this bilayer cell culture system After passing through a filter (濾 過 膜, filter, XXX) through the connecting tube A, the clean culture medium in which substances such as cell debris generated in the upper chamber are filtered, passes through a peristatic pump, Through connection tube A, again through the 3-way valve (xx), the clean culture fluid enters the lower chamber through the inflow port (oo) of the lower chamber. , The culture fluid flowing into the inlet (oo) The microenvironment or epigenetic, which is the source of humoral factor, secreted by cells or tissues of the cellar while passing through the cells or tissues sown. It passes through the urea, which is discharged through the outflow port (mm) across the basement, and contains a humoral factor secreted from the tissue of the basement. After passing through B (Tube B) and passing through a 3-way valve (yy), the fermentation pump is passed through the peristaltic pump without any damage to the humoral component through the filter (濾 過 膜, filter, YYY). Substances such as cell debris from the cellar through the filter are filtered and the clean culture fluid containing the humoral component flows into the inflow port (kk) of the loss, thereby containing the humoral substance. The culture medium that influence the seeded cells to lose (upper chamber). This may have the same effect as the modified Boyden chamber, while compensating for the disadvantages of using the modified Boyden chamber reported by several scholars.

In this way, in cell culture systems using a monolayer cell culture container as shown in Fig. 11, cell culture containers G and H are separated from each other without being connected up and down. When seeding the adipocytes isolated above to the cell culture vessel G on the left side, the culture medium exiting the outflow port (Gaa) of the cell culture vessel G is Through tube D, through a three-way valve (Gbb), then through a peristaltic pump, through a filter (濾 過 膜, filter, Gcc), the fluid component ( Inflow port of the right cell culture vessel H with a microenvironment or epigenetic element as a source of humoral factor. Hdd). The culture medium contains humoral elements through the tissue or cells seeded in the cell culture vessel H, and connects the tube C through the outflow port (Haa) of the cell culture vessel H. After passing through the peristaltic pump, through the three-way valve (3 way valve, Hbb) again through the filter (濾 過 膜, filter, Hcc) and the inlet port of the cell culture device G (流 入口, inflow port) , Gdd).

The advantage of this cell culture system is that once the cells or tissue are seeded in the upper chamber and the lower chamber sterilized sterilized, the caps, the caps and the caps are lost. Once tightly closed and tightly closed at the junctions of the cells, the media that have already been used can be used in three directions without the need for further opening of the cell culture system for media change. It can be exchanged with fresh media (fresh media) through a valve (3 way valve, 3 way valve, xx). By adjusting the handle of the three-way valve (3 way valve, xx) while slightly inclining the culture system in Fig. 10, the direction of the culture medium (ss) is changed to unilaterally. The old media is discharged to the outside by the way, and the fresh culture fluid is sucked through the constant direction valve (tt) through another three-way valve (3 way valve, yy). The culture solution may be supplied to the entire cell culture system through an upper chamber.

The invention consists of a total of 11 drawings,

Figure 1 is a cross-sectional view (AA) of the two storied cell culture container (AA) superimposed two container-type cell culture container (의 器) A cross-sectional view (BB) of a single storied cell culture container for one (1) cell culture container when the dish cell culture container is separately placed.

2 to 6 are enlarged views of each part of FIG.

Figure 2 is an enlarged view of the top of the lid and the cell culture vessel,

Figure 3 is an enlarged view (F) of the connection between the upper chamber and the lower chamber of the bilayer cell culture vessel and the outlet (outflow port) or inlet port of the lower chamber ( (D) is an enlarged drawing of the inflow port

Figure 4 is an enlarged view of the lower end of the monolayer cell culture vessel containing an enlarged view (CA) of the outlet or inlet,

5 is an enlarged view showing a relationship between a peristaltic pump and a connection tube (Tube A and Tube B),

6 is an enlarged view of a Germ barrier filter membrane installed on the side wall or the lid of the culture vessel,

FIG. 7 is a side view of the two-layered cell culture vessel stacked with two dish-type cell culture vessels, viewed from the side of the air permeable membrane;

8 is a top view of the dish cell culture vessel,

9 is a top view of a rectangular cell culture vessel,

10 is a two-layer cell culture vessel and a peristaltic pump, a filter (superimposing two cell culture vessels (container 器, container for cell culture) using the present invention. It is a connection diagram of a new cell culture system including a filter, a three way valve and a connecting tube,

FIG. 11 shows two separate cell culture vessels, a peristaltic pump, and a filter, in which a single layer cell culture vessel is separated from each dish cell culture vessel. ), A new diagram of a cell culture system including a three way valve and a connector.

Claims (4)

In a cell culture container, Above the bottom of the cell culture vessel, cell culture media in the cell culture vessel may be discharged to the outside through the connecting tube, or the cell culture vessel may be discharged through the connecting tube. There is an outlet (outflow port) or inflow port (流 入口, inflow port) that can be introduced into the inside, Cell culture vessels and lids can be completely tightly closed, so everything is non-passable to this closed contact area, A cell culture vessel that has a germ barrier filter membrane through which bacteria, such as bacteria, cannot pass through the air but can pass gas such as air. The method of claim 1, wherein the two-layer cell culture vessel is connected to two cell culture vessels, When the connection between the upper chamber and the lower chamber is connected, complete close closure is possible. It has separate outlets and inlets in each of the upper chamber and the lower chamber, On each side of the upper chamber and the lower chamber, germs are non-passable, but air and gas can pass through the germ. A two layer cell culture vessel capable of possessing a barrier filter membrane. In the quadrangle type cell culture container (quadangle type cell culture container), Owns a dividing wall separating the inside of the container into two spaces, The dividing wall has a predetermined size of pores at the top of the cell culture vessel, through which no cell or cell debris can pass but only cell culture media in the cell culture vessel can pass freely. Owns a membrane of (pore) The cell culture vessel lid is a rectangular cell culture vessel which contains a germ barrier flter membrane which is non-passable but allows air and gas to pass through. In the connection of a cell culture system comprising the cell culture vessel of claim 1 and 2, the cell culture vessel, a peristaltic pump, a filter, three directions (三 方向, 3 way) a cell culture system including a valve (valve) and a connecting tube connecting them, The cell culture and the lid are completely closed and air or gas can be supplied to the culture through a germ barrier filter membrane. The culture solution discharged from each cell culture vessel is passed through a filter to filter only cells or cell debris, and freely pass the cell culture solution. The cell culture fluid is exchanged in a three-way valve in the cell culture system by manipulating a three-way valve in a state where the peristaltic pump is operated. The old culture medium inside the cell culture system is discharged only through a valve, and fresh culture fluid from the outside of the cell culture system can also be supplied to the cell culture system through a 3-way valve connected to the culture medium. Cell culture system.

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